Tannins are natural organic matter that can result from natureâs fermentation process as water passes through the ground in peaty areas or through levels of decaying vegetation. Tannins are typical found in shallow wells, in swampy or marshy areas as well as coastal areas.
Jewel yams are ovate and cylindric in shape, tapering at the ends. They have a rough semi thick skin with a rose hued pale orange color. The flesh is brilliant orange, moist and starchy. The flesh's vibrant color increases when cooked.Its flavor is sweet and its starchy textures allows it to absorb accompanying ingredients' flavors. The Jewel yam is a high source for beta carotene and yields a substantial amount of carbohydrates per single yam.True yams are native to Asia and Africa and are one of the most important food crops in tropical and subtropical regions.he flesh is brilliant orange, moist and starchy. The flesh's vibrant color increases when cooked. Its flavor is sweet and its starchy textures allows it to absorb accompanying ingredients' flavors. The Jewel yam is a high source for beta carotene and yields a substantial amount of carbohydrates per single yam.
Fiber. The jewel yam provides you with 4 g of fiber per serving, although be sure to include the skin of the sweet potato when you consume it -- a good deal of the fiber resides there. Your meal plan should include 25 to 38 g of fiber per day to maintain the health of your digestive system.he jewel yam contains zero g of fat, making it a good choice if you follow a low-fat diet. The majority of the calories in this sweet potato come from carbohydrates, a macronutrient your body primarily uses for energy. A medium-sized jewel yam contains 33 g of carbohydrates.